Cotton-gin roller.



F. B. STRATTON.

COTTON GIN ROLLER.

APPLICATION FILED NOV. 16, 19:4.

1,173,323. Patented Feb. 29, 1916.

FBEDERIC BIDMEAD STRATTON, 0F BOMBAY, INDIA.

COTTON-GIN ROLLER.

Specification of Letters Patent.

Patented Feb. 29, 1916.

Application filed November 16, 1914. Serial No. 872,326.

To all whom it may concern:

Be it known that I, FREDnRro BIDMEAD STRATTON, an English subject of the Emperor of India, residing at Bombay, India, have invented certain new and useful Improvements in Cotton-Gin Rollers, of which the following is a specification.

This invention relates to rollers used in the Macarthy cotton gin for extracting the fiber from the seed. As hitherto made the rollers require frequent or daily removal from the machine in order to have spiral grooves cut on their surfaces so as to produce an edge that will seize the fiber and pull it off the seed. In the case of rollers built up of blocks or disks which are put on at right angles to the axis of the shaft the joints of the disks are liable to wear to circular grooves which interfere with good work.

According to the present invention the disks are cut in elliptical form and are placed diagonally on a mandrel so that the joints of the disks form a wavy line as the roller revolves, the amplitude of the wave depending on the angle of the disks. The disks are each provided with a hole which is elongated in the direction of the major axis and they are pressed tightly together.

A construction of the roller is illustrated in the annexed drawing in which the invention is represented in four figures.

In Figure 1, a is the complete roller composed of disks set at an angle on a mandrel and compressed between end collars. The position of the disks leaves a wedge-shaped Copies of this patent may be obtained for five cent gap at each end which is filled by a wedgeshaped block b which is built up of disks cemented together. The method of construction of the block b is shown in Fig. 3 which represents a block of disks cemented together. hen out along the lines (Z, and 0, three pieces are produced, the first and third of which make up the spaces that are left at each end of the roller by the diagonally placed disks or washers. This mode of cutting is necessary to obtain the increased angle or amplitude of wave. Fig. 2 is an end view of the complete roller, and Fig. 4 an end View of the block b.

By this arrangement the joints of the washers instead of making circular lines on the surface of the roller form wave lines of sufficient amplitude to produce a better average surface with superior working and Wearing qualities, throughout the life of the roller.

What I claim as my invention and desire to secure by Letters Patent is In a cotton gin roller made of elliptical disks set diagonally on a shaft, the combination of an angular section shaft passing through angular holes in the disks and wedge shaped end blocks built up of disks cemented together and cut to shape.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FREDERIC BIDMEAI) STRATTON.

Witnesses:

D. Y. FROTI-IINGHAM, H. C. WESTERMAN.

s each, by addressing the.Commissioner'of Batents,

Washington, D. G. 

